From nobody Tue Nov 26 08:53:20 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=yandex-team.ru ARC-Seal: i=1; a=rsa-sha256; t=1709129842; cv=none; d=zohomail.com; s=zohoarc; b=KC80PFgIjhfOLSQLoTVXl3Pyj6cMJvjvDtZSc6hr0T0ggzuoCf2HTiTOsGuf8ex91jiyMuXI/2Q7LpaFuwRU84ozLZR2ltX8eWULBAVkkGhHS7gXihqycGpZ7sMk1Hdp1X+cuI5H9tnu/5kRXGwxR9v/NH30+5oQD9yhlsr8xds= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1709129842; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=HhVBcLPlPkQxtSgZg/jKlbLIqY0aCzqEvpC1LSIod+E=; b=TgmF55zmwPkY+5e3Xzt9r0szcX939OU9F9oJyi9Dtr0nnD1BKEurE+60o0YNLn4eBilfoYob90a7oTTGkESYpynAHzD3UkRUd3zyXQ2T/t/RMDjdPvr4eFkFrwpsakMm8BczUyOYzzeFhBo8/XU4cB6d4cWdA2g2D/8uf70jzY4= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1709129842352227.78699171199662; Wed, 28 Feb 2024 06:17:22 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rfKio-0003zV-7x; Wed, 28 Feb 2024 09:15:46 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rfKib-0003pe-Hc; Wed, 28 Feb 2024 09:15:33 -0500 Received: from forwardcorp1a.mail.yandex.net ([178.154.239.72]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rfKiV-000264-J7; Wed, 28 Feb 2024 09:15:32 -0500 Received: from mail-nwsmtp-smtp-corp-main-83.vla.yp-c.yandex.net (mail-nwsmtp-smtp-corp-main-83.vla.yp-c.yandex.net [IPv6:2a02:6b8:c18:486:0:640:cf34:0]) by forwardcorp1a.mail.yandex.net (Yandex) with ESMTPS id CE1C260B9A; Wed, 28 Feb 2024 17:15:19 +0300 (MSK) Received: from vsementsov-lin.. (unknown [2a02:6b8:b081:a522::1:14]) by mail-nwsmtp-smtp-corp-main-83.vla.yp-c.yandex.net (smtpcorp/Yandex) with ESMTPSA id 4FaAWa1Of0U0-vtREubyu; Wed, 28 Feb 2024 17:15:19 +0300 X-Yandex-Fwd: 1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex-team.ru; s=default; t=1709129719; bh=HhVBcLPlPkQxtSgZg/jKlbLIqY0aCzqEvpC1LSIod+E=; h=Message-Id:Date:In-Reply-To:Cc:Subject:References:To:From; b=py7Ad7wz6mSNv3m142arow8b4yakBfpaPK4o4RSOXEKjZf4600WRTAYzf/sb+7hz4 MeeN+VFRjrHX+RumvB7kwQ8fCHuaYmt+wkU9zHcIlBWdMhgiZDw8uYKUPPP4gEoWQN KEVcSOY95OeqEhDtapAXFw5pAyTrgUXBne8dBZ/c= Authentication-Results: mail-nwsmtp-smtp-corp-main-83.vla.yp-c.yandex.net; dkim=pass header.i=@yandex-team.ru From: Vladimir Sementsov-Ogievskiy To: qemu-block@nongnu.org Cc: qemu-devel@nongnu.org, armbru@redhat.com, eblake@redhat.com, xiechanglong.d@gmail.com, wencongyang2@huawei.com, hreitz@redhat.com, kwolf@redhat.com, vsementsov@yandex-team.ru, jsnow@redhat.com, f.ebner@proxmox.com, den@virtuozzo.com, alexander.ivanov@virtuozzo.com Subject: [PATCH v3 3/5] block/copy-before-write: create block_copy bitmap in filter node Date: Wed, 28 Feb 2024 17:14:59 +0300 Message-Id: <20240228141501.455989-4-vsementsov@yandex-team.ru> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240228141501.455989-1-vsementsov@yandex-team.ru> References: <20240228141501.455989-1-vsementsov@yandex-team.ru> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=178.154.239.72; envelope-from=vsementsov@yandex-team.ru; helo=forwardcorp1a.mail.yandex.net X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @yandex-team.ru) X-ZM-MESSAGEID: 1709129843105100006 Content-Type: text/plain; charset="utf-8" Currently block_copy creates copy_bitmap in source node. But that is in bad relation with .independent_close=3Dtrue of copy-before-write filter: source node may be detached and removed before .bdrv_close() handler called, which should call block_copy_state_free(), which in turn should remove copy_bitmap. That's all not ideal: it would be better if internal bitmap of block-copy object is not attached to any node. But that is not possible now. The simplest solution is just create copy_bitmap in filter node, where anyway two other bitmaps are created. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Fiona Ebner --- block/block-copy.c | 3 +- block/copy-before-write.c | 2 +- include/block/block-copy.h | 1 + tests/qemu-iotests/257.out | 112 ++++++++++++++++++------------------- 4 files changed, 60 insertions(+), 58 deletions(-) diff --git a/block/block-copy.c b/block/block-copy.c index 9ee3dd7ef5..8fca2c3698 100644 --- a/block/block-copy.c +++ b/block/block-copy.c @@ -351,6 +351,7 @@ static int64_t block_copy_calculate_cluster_size(BlockD= riverState *target, } =20 BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target, + BlockDriverState *copy_bitmap_bs, const BdrvDirtyBitmap *bitmap, Error **errp) { @@ -367,7 +368,7 @@ BlockCopyState *block_copy_state_new(BdrvChild *source,= BdrvChild *target, return NULL; } =20 - copy_bitmap =3D bdrv_create_dirty_bitmap(source->bs, cluster_size, NUL= L, + copy_bitmap =3D bdrv_create_dirty_bitmap(copy_bitmap_bs, cluster_size,= NULL, errp); if (!copy_bitmap) { return NULL; diff --git a/block/copy-before-write.c b/block/copy-before-write.c index 6547eda707..44a9385aa7 100644 --- a/block/copy-before-write.c +++ b/block/copy-before-write.c @@ -467,7 +467,7 @@ static int cbw_open(BlockDriverState *bs, QDict *option= s, int flags, ((BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP | BDRV_REQ_NO_FALLBACK) & bs->file->bs->supported_zero_flags); =20 - s->bcs =3D block_copy_state_new(bs->file, s->target, bitmap, errp); + s->bcs =3D block_copy_state_new(bs->file, s->target, bs, bitmap, errp); if (!s->bcs) { error_prepend(errp, "Cannot create block-copy-state: "); return -EINVAL; diff --git a/include/block/block-copy.h b/include/block/block-copy.h index 0700953ab8..8b41643bfa 100644 --- a/include/block/block-copy.h +++ b/include/block/block-copy.h @@ -25,6 +25,7 @@ typedef struct BlockCopyState BlockCopyState; typedef struct BlockCopyCallState BlockCopyCallState; =20 BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target, + BlockDriverState *copy_bitmap_bs, const BdrvDirtyBitmap *bitmap, Error **errp); =20 diff --git a/tests/qemu-iotests/257.out b/tests/qemu-iotests/257.out index aa76131ca9..c33dd7f3a9 100644 --- a/tests/qemu-iotests/257.out +++ b/tests/qemu-iotests/257.out @@ -120,16 +120,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -596,16 +596,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -865,16 +865,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -1341,16 +1341,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -1610,16 +1610,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -2086,16 +2086,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -2355,16 +2355,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -2831,16 +2831,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -3100,16 +3100,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -3576,16 +3576,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -3845,16 +3845,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -4321,16 +4321,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -4590,16 +4590,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -5066,16 +5066,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, --=20 2.34.1